If you place the shot well, then any one of them will probably work as well as the others. If you fail to place the shot well, then none of these will make up for poor placement. So, if the shooter's skill is the main variable in the effectiveness of the load, then the shooter needs to practice regularly to reduce this variable. To me, that means I'd buy whatever I could get locally or regularly, as I'd be shooting a lot of it.
If 2, or all 3 loads were available locally or regularly, then I'd initially buy a couple of boxes of each, and run a test to make sure the pistol would shoot each load reliably (not a given, especially with tiny pocket pistols). If it failed to function with any load, then I'd remove that load from the list of choices.
Finally, if the above still hadn't completely settled the case, I'd go with penetration as a tie-breaker. In smaller caliber, short-barreled (read: reduced-velocity) pistols, getting that tiny/lightweight bullet deep enough to reach the vital organs is critical. I'd search for any online test results showing penetration depth in calibrated gelatin for each load in a similar-length barrel, and I'd pick whichever load penetrated the deepest.
For what it's worth, I inherited a small .32 ACP many years ago. On the rare occasions it is loaded for serious use, I use FMJ (full-metal-jacket, or metal-jacketed round-nose ammo, by another name), as I want maximum reliability and penetration. Personal testing in my pistol showed expanding bullet loads didn't function reliably enough, and research showed they didn't penetrate deep enough, to meet my standards. Your goals may be different, and your pistol definitely is different, so this is not necessarily a recommendation, just a description of how I approached the problem.